def get_holder_count(asset):
asset = util.resolve_subasset_longname(self.db, asset)
holders = util.holders(self.db, asset, True)
addresses = []
for holder in holders:
addresses.append(holder['address'])
return {asset: len(set(addresses))}
def asset_conservation(db):
logger.debug('Checking for conservation of assets.')
supplies = util.supplies(db)
for asset in supplies.keys():
issued = supplies[asset]
held = sum(
[holder['address_quantity'] for holder in util.holders(db, asset)])
if held != issued:
raise SanityError('{} {} issued ≠ {} {} held'.format(
util.value_out(db, issued, asset), asset,
util.value_out(db, held, asset), asset))
logger.debug(
'{} has been conserved ({} {} both issued and held)'.format(
asset, util.value_out(db, issued, asset), asset))
def get_holders(asset):
holders = util.holders(db, asset)
return holders
def get_holder_count(asset):
holders = util.holders(db, asset)
addresses = []
for holder in holders:
addresses.append(holder['address'])
return {asset: len(set(addresses))}
def validate (db, source, quantity_per_unit, asset, dividend_asset, block_index):
cursor = db.cursor()
problems = []
if asset == config.BTC:
problems.append('cannot pay dividends to holders of {}'.format(config.BTC))
if asset == config.XCP:
if (not block_index >= 317500) or block_index >= 320000 or config.TESTNET or config.REGTEST: # Protocol change.
problems.append('cannot pay dividends to holders of {}'.format(config.XCP))
if quantity_per_unit <= 0:
problems.append('non‐positive quantity per unit')
# For SQLite3
if quantity_per_unit > config.MAX_INT:
problems.append('integer overflow')
# Examine asset.
issuances = list(cursor.execute('''SELECT * FROM issuances WHERE (status = ? AND asset = ?) ORDER BY tx_index ASC''', ('valid', asset)))
if not issuances:
problems.append('no such asset, {}.'.format(asset))
return None, None, problems, 0
divisible = issuances[0]['divisible']
# Only issuer can pay dividends.
if block_index >= 320000 or config.TESTNET or config.REGTEST: # Protocol change.
if issuances[-1]['issuer'] != source:
problems.append('only issuer can pay dividends')
# Examine dividend asset.
if dividend_asset in (config.BTC, config.XCP):
dividend_divisible = True
else:
issuances = list(cursor.execute('''SELECT * FROM issuances WHERE (status = ? AND asset = ?)''', ('valid', dividend_asset)))
if not issuances:
problems.append('no such dividend asset, {}.'.format(dividend_asset))
return None, None, problems, 0
dividend_divisible = issuances[0]['divisible']
# Calculate dividend quantities.
exclude_empty = False
if util.enabled('zero_quantity_value_adjustment_1'):
exclude_empty = True
holders = util.holders(db, asset, exclude_empty)
outputs = []
addresses = []
dividend_total = 0
for holder in holders:
if block_index < 294500 and not (config.TESTNET or config.REGTEST): # Protocol change.
if holder['escrow']: continue
address = holder['address']
address_quantity = holder['address_quantity']
if block_index >= 296000 or config.TESTNET or config.REGTEST: # Protocol change.
if address == source: continue
dividend_quantity = address_quantity * quantity_per_unit
if divisible: dividend_quantity /= config.UNIT
if not util.enabled('nondivisible_dividend_fix') and not dividend_divisible: dividend_quantity /= config.UNIT # Pre-fix behaviour
if dividend_asset == config.BTC and dividend_quantity < config.DEFAULT_MULTISIG_DUST_SIZE: continue # A bit hackish.
dividend_quantity = int(dividend_quantity)
outputs.append({'address': address, 'address_quantity': address_quantity, 'dividend_quantity': dividend_quantity})
addresses.append(address)
dividend_total += dividend_quantity
if not dividend_total: problems.append('zero dividend')
if dividend_asset != config.BTC:
dividend_balances = list(cursor.execute('''SELECT * FROM balances WHERE (address = ? AND asset = ?)''', (source, dividend_asset)))
if not dividend_balances or dividend_balances[0]['quantity'] < dividend_total:
problems.append('insufficient funds ({})'.format(dividend_asset))
fee = 0
if not problems and dividend_asset != config.BTC:
holder_count = len(set(addresses))
if block_index >= 330000 or config.TESTNET or config.REGTEST: # Protocol change.
fee = int(0.0002 * config.UNIT * holder_count)
if fee:
balances = list(cursor.execute('''SELECT * FROM balances WHERE (address = ? AND asset = ?)''', (source, config.XCP)))
if not balances or balances[0]['quantity'] < fee:
problems.append('insufficient funds ({})'.format(config.XCP))
if not problems and dividend_asset == config.XCP:
total_cost = dividend_total + fee
if not dividend_balances or dividend_balances[0]['quantity'] < total_cost:
problems.append('insufficient funds ({})'.format(dividend_asset))
# For SQLite3
if fee > config.MAX_INT or dividend_total > config.MAX_INT:
problems.append('integer overflow')
cursor.close()
return dividend_total, outputs, problems, fee
def get_holders(asset):
holders = util.holders(db, asset)
return holders
def get_holder_count(asset):
holders = util.holders(db, asset)
addresses = []
for holder in holders:
addresses.append(holder['address'])
return {asset: len(set(addresses))}
def validate (db, source, quantity_per_unit, asset, dividend_asset, block_index):
cursor = db.cursor()
problems = []
if asset == config.BTC:
problems.append('cannot pay dividends to holders of {}'.format(config.BTC))
if asset == config.XCP:
if (not block_index >= 317500) or block_index >= 320000 or config.TESTNET: # Protocol change.
problems.append('cannot pay dividends to holders of {}'.format(config.XCP))
if quantity_per_unit <= 0: problems.append('non‐positive quantity per unit')
# Examine asset.
issuances = list(cursor.execute('''SELECT * FROM issuances WHERE (status = ? AND asset = ?) ORDER BY tx_index ASC''', ('valid', asset)))
if not issuances:
problems.append('no such asset, {}.'.format(asset))
return None, None, problems, 0
divisible = issuances[0]['divisible']
# Only issuer can pay dividends.
if block_index >= 320000 or config.TESTNET: # Protocol change.
if issuances[-1]['issuer'] != source:
problems.append('only issuer can pay dividends')
# Examine dividend asset.
if dividend_asset in (config.BTC, config.XCP):
dividend_divisible = True
else:
issuances = list(cursor.execute('''SELECT * FROM issuances WHERE (status = ? AND asset = ?)''', ('valid', dividend_asset)))
if not issuances:
problems.append('no such dividend asset, {}.'.format(dividend_asset))
return None, None, problems, 0
dividend_divisible = issuances[0]['divisible']
# Calculate dividend quantities.
holders = util.holders(db, asset)
outputs = []
addresses = []
dividend_total = 0
for holder in holders:
if block_index < 294500 and not config.TESTNET: # Protocol change.
if holder['escrow']: continue
address = holder['address']
address_quantity = holder['address_quantity']
if block_index >= 296000 or config.TESTNET: # Protocol change.
if address == source: continue
dividend_quantity = address_quantity * quantity_per_unit
if divisible: dividend_quantity /= config.UNIT
if not dividend_divisible: dividend_quantity /= config.UNIT
if dividend_asset == config.BTC and dividend_quantity < config.DEFAULT_MULTISIG_DUST_SIZE: continue # A bit hackish.
dividend_quantity = int(dividend_quantity)
outputs.append({'address': address, 'address_quantity': address_quantity, 'dividend_quantity': dividend_quantity})
addresses.append(address)
dividend_total += dividend_quantity
if not dividend_total: problems.append('zero dividend')
if dividend_asset != config.BTC:
dividend_balances = list(cursor.execute('''SELECT * FROM balances WHERE (address = ? AND asset = ?)''', (source, dividend_asset)))
if not dividend_balances or dividend_balances[0]['quantity'] < dividend_total:
problems.append('insufficient funds ({})'.format(dividend_asset))
fee = 0
if not problems and dividend_asset != config.BTC:
holder_count = len(set(addresses))
if block_index >= 330000 or config.TESTNET: # Protocol change.
fee = int(0.0002 * config.UNIT * holder_count)
if fee:
balances = list(cursor.execute('''SELECT * FROM balances WHERE (address = ? AND asset = ?)''', (source, config.XCP)))
if not balances or balances[0]['quantity'] < fee:
problems.append('insufficient funds ({})'.format(config.XCP))
if not problems and dividend_asset == config.XCP:
total_cost = dividend_total + fee
if not dividend_balances or dividend_balances[0]['quantity'] < total_cost:
problems.append('insufficient funds ({})'.format(dividend_asset))
cursor.close()
return dividend_total, outputs, problems, fee
def get_holders(asset):
asset = util.resolve_subasset_longname(self.db, asset)
holders = util.holders(self.db, asset, True)
return holders
def get_holders(asset):
asset = util.resolve_subasset_longname(db, asset)
holders = util.holders(db, asset)
return holders
